Getting Data In

How do I blacklist multiple events on same line: Can I use '-'?

benbabich
Explorer

I want to blacklist 4698, 4699, 4700, 4701,4702 if they contain 'Microsoft\Windows' in the Task Name.

Would either of these work?
blacklist1 = EventCode="4698,4699,4700,4701,4702" Message="(?:Task Name:).+(?:Microsoft\Windows?)"
or
blacklist1 = EventCode="4698-4702" Message="(?:Task Name:).+(?:Microsoft\Windows?)"

Or would I have to have a separate line for each, such as :
blacklist1 = EventCode="4698" Message="(?:Task Name:).+(?:Microsoft\Windows?)"
blacklist2 = EventCode="4699" Message="(?:Task Name:).+(?:Microsoft\Windows?)"
etc

0 Karma

chanthongphiob
Path Finder

Since Message="(?:Task Name:).+(?:Microsoft\Windows?)" is in regex form, the "EventCode=" must use regex as well.

You will have to break up "EventCode=" into two separate blacklist. For example:

blacklist = EventCode="^469([8-9])$" Message=blah
blacklist1 = EventCode="^470([0-2])$" Message=blah

This Splunk Doc provides an example of whitelisting, but both are similar.

http://docs.splunk.com/Documentation/SplunkCloud/6.6.3/Data/MonitorWindowseventlogdata

0 Karma

aivarson_splunk
Splunk Employee
Splunk Employee

You can either filter by eventcode or regex. According to Splunk Docs...You can specify one of two formats:

One or more Event Log event codes or event IDs (Event Log code/ID format.)
One or more sets of keys and regular expressions. (Advanced filtering format.)
You cannot mix formats in a single entry. You also cannot mix formats in the same stanza.

Examples -
event code blacklist
blacklist1 = 1100,1101,4624,4634,4647-4649

regex blacklist
blacklist1 = EventCode=%^200$% User=%drodman%

You can specify up to 10 blacklist per input stanza. If you need more than this you might want to consider a whitelist strategy instead. You just whitelist the codes you need instead of blacklisting the ones you don't.

More details here: http://docs.splunk.com/Documentation/Splunk/latest/admin/inputsconf#Event_Log_whitelist_and_blacklis...

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Make Your Machine Data AI-Ready in Splunk

Every team is getting ready for AI agents.   Thursday, November 12, 2026  |  11AM  PST / 2PM EST   ...

Splunk Asynchronous Forwarding Explained

Splunk asynchronous forwarding is often misunderstood as simply setting autoLBVolume. That is not quite right. ...

How to Monitor AI Agents with Splunk Agent Observability

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...